It requires some fitness and hole filling. But the tps and iacv are the same plugs. You don't have to, but should work the manifold to fit the new size to take advantage of it. Its an internal idle system so it's quieter on cold starts

Oh, for a quick update. It ran for a few days on the new setup. Worked really well at 15psi. Next day no start, likely electrical issues. Couldn't get it to start again and stay running, just sounded like a misfire in the intake plenum. 2 days later I set it on fire for about 90 seconds and spend 5 weeks recovering the damages and also doing a front timing/seal job on it. I go to test compression and I've got 130 on 1,2,4 but cylinder 3 is 0. I put 2 tsb of oil in. Nada. But the oil doesn't go away, it's still in it Lmao. So the rings are good. Perhaps weld slag from the the modified 205 core got in and ruined the valve seats. At this point I haven't removed the head so I don't have conclusions atm. Luckily I have an entire engine worth of parts to go ahead and start on a forged build. I'll post pics and the damages of the fire along with the entire 5 weeks of crazy repairs